Contributors and Affiliations to Social Security based on Contributors' Registered Place of Residence. 09/2026
The number of Social Security contributors in Catalonia increased by 145,605 people in September 2026 compared to the same month of the previous year, representing an increment of 4.0%, and reached 3,811,275 people. Contributors increased in all counties and Aran. The most significant increases in relative terms were in El Baix Penedès (5.3%), Aran (5.2%) and L'Alt Empordà (5.1%).
Regarding the municipalities of Catalonia, the number of contributors increased or remained stable in 87% of municipalities (824 municipalities) compared to the same month of the previous year, while it decreased in the rest of municipalities (123). All municipalities in Catalonia with 50,000 inhabitants and over increased in the number of contributors compared to a year ago. The increases were led, in relative numbers, by L’Hospitalet de Llobregat (7.4%) and Santa Coloma de Gramenet (6.7%).
Compared to August, the number of contributors increased by 38,350 people (1.0%) in Catalonia as a whole and also in 22 counties, led by El Vallès Occidental (2.5%) and El Barcelonès (2.2%). On the other hand, contributors remained stable in El Solsonès and fell in 19 counties and Aran.
By sex, and compared to a year ago, the number of women Social Security contributors in Catalonia as a whole increased by 59,470 and the number of men by 86,135, representing year-over-year increases of 3.4% and 4.4%, respectively.
In Catalonia as a whole, the number of contributors increased in all age groups, with the most significant increase in the youngest group (contributors aged under 30), at 8.3%.
Foreign national contributors grew by 17.7% in Catalonia as a whole compared to the same month of the previous year, doing so in all counties and Aran. On the other hand, Spanish national contributors grew by 0.9% in Catalonia as a whole, doing so in 32 counties.
The number of Social Security affiliations stood at 3,997,595 affiliations in September, representing an increase of 3.8% compared to a year ago.
By sector, affiliations in the services sector increased by 4.1% year over year, growing in all counties and Aran. In industry, affiliations increased by 1.9% in Catalonia as a whole and in 35 counties. In the case of construction, affiliations increased by 3.9% in Catalonia as a whole and in 34 counties and Aran. Affiliations in agriculture increased by 4.3%, with 2,430 affiliations more than a year ago, and did so in 33 counties.
It should be noted that these variations may be affected by the fact that, from January 2026 onwards, the results of these statistics are presented under the new Catalan Classification of Economic Activities (CCAE-2025), which is a comprehensive revision of the previous classification structure (CCAE-2009), used for results until December 2025.
By type of working day, 19.0% of employee affiliations in September were part-time. In the case of women, the proportion was 25.6%, more than double that of men (12.7%).
Regarding temporary contracts, the proportion of Social Security employee affiliations of a temporary nature stood at 10.0%. The counties with the highest level of temporary contract were La Ribera d'Ebre (14.0%), El Pallars Jussà (13.5%) and El Pallars Sobirà (13.4%), and the one with the lowest level of temporary contract was El Baix Empordà (7.3%).